President Obama speaks to supporters at a campaign event held at the Bridgeport Art Center in Chicago

President Obama speaks to supporters at a campaign event held at the Bridgeport Art Center in Chicago. Obama comments on Republican presidential candidate Mitt Romney's choice of Paul Ryan as his running mate and talks about what he calls the "two visions" for moving the country forward. He calls the Republican tax and economic policies "trickle down fairy dust" declaring it has been tried and did not work, then lays out his objectives for a second term.